python 報錯：ValueError: I/O operation on closed file
這是python讀寫文件常常會遇到的錯誤python 報錯緣由：with open(filename)as f：f變量只在該代碼塊內有效，使用完後會自動關閉I/O流it 解決辦法：從新定義一個 open(fillename)變量或者從新使用with as語句變量
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- 8. The requested operation is invalid on a closed state
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相關文章
- 1. Python ValueError: IO operation on closed file
- 2. Python ValueError: IO operation on closed file 的另外一種解法
- 3. I/O operation on closed file.
- 4. 已解決：ValueError: I/O operation on closed file.
- 5. python爬蟲:I/O operation on closed file.
- 6. ValueError: I/O operation on closed file 的解決辦法
- 7. python unittest使用HTMLTestRunnerNew報錯：ValueError: write to closed file解決方式
- 8. The requested operation is invalid on a closed state
- 9. ClientDataSet1 cannot perform this operation on a closed dataset.錯誤
- 10. qAdmin cannot perform this operation on a closed dataset